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				7．       the sign beside the chairs．We can’t        (sit)on them．			【查看更多】
			


		
           
          


		
          
		
          題目列表(包括答案和解析)
          

		
		
          

          


          
	
          				
          
									
          We _______ talk loudly when we
see the sign “ Be quiet ”on the right. 
          


          A.
must          B.
mustn’t       C. need          D.
needn’t
          


           
          

			
          
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          We _______ talk loudly when we see the sign “ Be quiet ”on the right. 
          A．mustB．mustn’tC．needD．needn’t
          

			
          
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          We _______ talk loudly when we see the sign “ Be quiet ”on the right.

          1. A.
            must
          2. B.
            mustn’t
          3. C.
            need
          4. D.
            needn’t
          

			
          
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          We _______ talk loudly when we see the sign “ Be quiet ”on the right. 
          A．mustB．mustn’tC．needD．needn’t
          

			
          
				查看答案和解析>>
			
          
		
          
				
          
									
          We _______ talk loudly when we see the sign "Be quiet" on the wall. 
          

          [     ]
          A. must 
          B. mustn't 
          C. need 
          D. needn't 
          

			
          
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